*{margin:0;padding:0;border:0;}
ul,li{list-style-type:none;}
.txt-con-1,.txt-con-2,.txt-con-3,.txt-con-4,.tab-area{width:1100px;margin-left:auto;margin-right:auto;}
.txt-con-1,.txt-con-2,.txt-con-3,.txt-con-4{height:auto;margin-top:55px;margin-bottom:55px;}
.banner img{width:100%;}

.top-line{width:100%;border-top:1px solid #ddd;margin-bottom:50px;}
.tab-area-til{color:#333;}
.tab-area-til h3{width:175px;font-size:43px;font-family:"微软雅黑";font-weight:bold;border-bottom:5px solid #333;}
.tab-area-til p{line-height:30px;font-size:13.5px;font-family:"Arial";font-weight:600;}
.tab-area-con{position:relative;height:220px;padding:0 65px;}
.tab-area-item{float:left;width:80px;height:80px;border:5px solid #ddd;margin:45px 24px;border-radius:45px;background-color:#fff;cursor:pointer;line-height:80px;text-align:center;font-size:20px;font-weight:600;}
.tab-area-item.active{background-color:#087cd5;border-color:#087cd5;color:#fff;font-weight:bold;}
.tab-area-con:before{content:"";display:block;position:relative;width:1100px;height:3px;background-color:#ddd;left:-65px;top:92px;z-index: -1;}
.tab-area-subitm{display:none;position:relative;left:60px;margin-top:35px;width:800px;}
.tab-area-subitm.active{display:block;}
.tab-area-subitm li{position:relative;border-left:1px solid #ddd;margin-bottom:50px;}
.tab-area-subitm b{display:block;position:absolute;left:-55px;top:0px;font-size:20px;line-height:20px;color:#333;}
.tab-area-subitm b:after{content:"";display:block;position:absolute;top:5px;right:-27px;width:10px;height:10px;border-radius:5px;background-color:#ddd;}
.tab-area-subitm h5{text-align:left;text-indent:50px;font-weight:normal;line-height: 20px;color:#333;}
.tab-area-subitm img{display:block;width:700px;margin-top:25px;margin-left:50px;}